Specification Size: 19mm*103mm Main material: Stainless steel 304 + PCTG Pod capacity: 2.5 ml Battery capacity: 850 mah battery Pod resistance: 0.9Ω mesh coil & 0.9Ω regular coil Vape system: Draw-activated Features Compact and portable size Gentle & Snug Mouthpiece Design Visible juice level to avoid dry hit Design for both Freebase and Nic salt e-liquids Adjustable airflow control Hiden USB charge port Mesh coil for free base e-liquids can be refilled at least 7 times Regular twisted coil for Nic Salt can be refilled at least 3 times No loss in flavor Contain: 1 x Device of Halo Stick 1 x Pod with 0.9Ω mesh coil ( for freebase e-liquid) 1 x Pod with 0.9Ω regular coil ( for nic salt) 1 x User Manual 1 x Warranty Card 1 x USB charging cable